RemoveTempoChangeCommand.cpp

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: *//* Rosegarden A MIDI and audio sequencer and musical notation editor. Copyright 2000-2010 the Rosegarden development team. Other copyrights also apply to some parts of this work. Please see the AUTHORS file and individual file headers for details. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information.*/#include "RemoveTempoChangeCommand.h"#include "base/Composition.h"#include <QString>namespace Rosegarden
{
void
RemoveTempoChangeCommand::execute()
{
if (m_tempoChangeIndex >= 0) {
std::pair<timeT, tempoT> data =
m_composition->getTempoChange(m_tempoChangeIndex);
// store
m_oldTime = data.first;
m_oldTempo = data.second;
}
// do we need to (re)store the index number?//
m_composition->removeTempoChange(m_tempoChangeIndex);
}
void
RemoveTempoChangeCommand::unexecute()
{
m_composition->addTempoAtTime(m_oldTime, m_oldTempo);
}
}